Dislocation pile-up and grain boundary interactions in 304 stainless steel

Strain field due to a slip band near a grain boundary in an Fe-6at.% Si bicrystal. III. Simulation of the orientation contrast

“…Shen, Wagoner & Clark, 1986;George, 1988). It was observed that the dislocation density is very high at the boundary (-0.11~m-t), but decreases quickly and is nearly constant at a distance of several micrometers from the boundary.…”

Slip band–grain boundary interactions in commercial-purity titanium

“…The most common stress relief mechanism is by generating new dislocations in the neighbouring grain [30][31][32][33][34][35][36].…”

“…This criterion emphasise the importance of geometric alignment on the choice of transferred slip system. Later work by Shen et al [31] pointed out the importance of incorporating a resolved shear stress on slip transfer and a new model was proposed:…”

A predictive model for transferability of plastic deformation through grain boundaries

“…A criterion based on the N-value was then developed by introducing the geometric relationship of the intersection between each slip plane in a grain and a GB plane. 18,19 The criterion, called the M-value, predicts the degree of propagation of plastic deformation across the GB. Subsequently, since the strain energy of the residual dislocation between an incoming dislocation and an outgoing dislocation has to be minimized for easier transfer across the GB, the residual GB dislocation condition has been added to the M-value.…”

“…The following M-value has been proposed and successfully used to explain experimental results by taking into consideration the crystallographic orientation of the intersection. 18,19 …”